Device of overflow drainage of rice field

Because the outlet of rice field cultivated in the country was
trouble, it decided to make it newly. It produced it by thinking the more device
if it made it anyway though it was thought that made it by the method being done
by neighbors. A useless water leak was not found at all, and the water level was
able to be adjusted easily. It would be greatly appreciated when serving as a
reference. It is the one that it wants you to teach if there is a better method.

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Principle of overflow drainage

Pattern diagrams of overflow drainage device

The schematic diagram on the left, the center ridge of the paddy rice field is
rib. Drainage into the right channel.

Pipes is laid with the drain pipe, and the pipe is started up in rice field. Two
elbows are previously installed ..that.., and the pipe of 30-40cm is installed
first ..that... The pipe has been only inserted without bonding the elbow part.

It moves up and down the pipe ahead as shown in figure, and the water level
is adjusted.

Overflow type drainage produced with VU100

This It is a photograph of the drainage of the overflow type made by using
the pipe and the elbow of
VU100. It uses it at the position like this usually.

I think that the pipe that ties to the elbow the elbow shifts position easily
when it is made a rather short a little by little power. I made it with the pipe
of the length of 8.5cm. The water leak from the joint of the pipe is not found
at all.

Photograph when water level is the lowest

The photograph in this case when the water level is the lowest. I adjusted
the length of the pipe in this point to 35cm. This length seems to have to be
used and to be adjusted.

It made it to VU100 this time because there was a thing that the fallen leaf
and garbage, etc. are blocked though there was a thing similarly made by using
VU75 before. If it is this size, it seems not to be blocked even if garbage is
caught. It is very good feeling.